The uptake of biologically active substances by lysosomes.
D000166:Acridines / Q000378:metabolism*; D000818:Animals; D004396:Coloring Agents / Q000378:metabolism*; D066298:In Vitro Techniques; D008247:Lysosomes / Q000378:metabolism*; D008856:Microscopy, Fluorescence; D051381:Rats; D014316:Tritium
D000166:Acridines; D004396:Coloring Agents; D014316:Tritium